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Finding the Fourth Proportional to 2,889.03, 4,333.07 and 1,039.80

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Solution

The fourth proportional to 2,889.03, 4,333.07 and 1,039.80 is: 1,559.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.03 : 4,333.07 = 1,039.80 : x
  2. Step 2: Convert to fraction form
    2,889.03/4,333.07 = 1,039.80/x
  3. Step 3: Cross multiply
    2,889.03x = 4,333.07 × 1,039.80
  4. Step 4: Simplify right side
    2,889.03x = 4,505,520.99
  5. Step 5: Solve for x
    x = 4,505,520.99/2,889.03
  6. Step 6: Final answer
    x = 1,559.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.